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28 vulnerabilities found for jupyterlab by jupyterlab
CVE-2026-73417 (GCVE-0-2026-73417)
Vulnerability from nvd – Published: 2026-08-13 22:04 – Updated: 2026-08-14 16:06
VLAI
EPSS
VEX
Title
JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings Editor. In packages/notebook-extension/schema/tracker.json and packages/notebook-extension/src/index.ts, the sideBySideLeftMarginOverride and sideBySideRightMarginOverride settings are not properly validated before being inserted into style content, allowing a crafted settings file to contain instructions that execute as code instead of only changing display preferences. A user can import the malicious file, or an attacker with access to a shared settings location can plant an overrides.json that is applied automatically. The embedded code runs with the affected user's access and can read or modify notebooks and files and run code through the notebook server, including on a connected kernel. This issue is fixed in versions 4.5.10 and 4.6.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 16:06 UTC
CWE
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/pull/19184 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19185 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19186 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/9… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/b… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/f… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>= 3.3.0, < 4.5.10
Affected: >= 4.6.0, < 4.6.2 |
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CVE-2026-73416 (GCVE-0-2026-73416)
Vulnerability from nvd – Published: 2026-08-13 22:04 – Updated: 2026-08-13 22:04
VLAI
EPSS
VEX
Title
jupyterlab: PyPI extension blocklist package-name canonicalization bypass
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.0 until 4.5.10 and 4.6.2, in jupyterlab/extensions/manager.py and jupyterlab/extensions/pypi.py, JupyterLab's PyPI extension manager enforces blocked_extensions_uris by comparing requested install names to blocklist entries with custom normalization that is weaker than PyPI package-name canonicalization. An authenticated user can request a PyPI-equivalent spelling such as JupyterLab.Git for a blocklisted package such as jupyterlab-git, and JupyterLab accepts the install request even though pip resolves the variant to the same package. Security impact requires an allowlist or blocklist intended to restrict package installation, the PyPI Extension Manager, and kernels and terminals that are disabled or delegated to remote hosts. The bypass lets an authenticated user install a prohibited extension, defeat integrity restrictions, and affect availability without gaining new read access. This issue is fixed in versions 4.5.10 and 4.6.2.
Severity
CWE
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/pull/19184 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19185 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19186 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/9… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/b… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/f… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>= 4.5.0, < 4.5.10
Affected: >= 4.6.0, < 4.6.2 |
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CVE-2026-73627 (GCVE-0-2026-73627)
Vulnerability from nvd – Published: 2026-08-13 11:28 – Updated: 2026-08-15 03:13
VLAI
EPSS
VEX
Title
JupyterLab 4.6.0 Plugin Manager Lock-Rule Enforcement Bypass
Summary
JupyterLab (pip package 'jupyterlab') versions >=4.1.0,<=4.5.9 and >=4.6.0,<=4.6.1 contain a plugin manager lock-rule enforcement bypass. Two server-side enforcement gaps allow an authenticated user to circumvent administrator lock rules by making direct requests to the /lab/api/plugins endpoint, enabling or disabling plugins that were locked — including child plugins of multi-plugin extensions and plugins locked via the 'lock all' mechanism. This can impact data integrity and bypass hardening or restrictions (e.g., download/upload limits) implemented through locked plugins. Fixed in versions 4.6.2 and 4.5.10.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-15 03:13 UTC
CWE
- CWE-602 - Client-Side Enforcement of Server-Side Security
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/jupyterlab-p… | third-party-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Unaffected:
0 , < 4.6.0
(semver)
|
|
| jupyterlab | jupyterlab |
Unaffected:
0 , < 4.1.0
(semver)
|
Date Public
2026-07-21 00:00
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CVE-2026-73626 (GCVE-0-2026-73626)
Vulnerability from nvd – Published: 2026-08-13 11:28 – Updated: 2026-08-13 12:57
VLAI
EPSS
VEX
Title
JupyterLab before 4.6.2 Authentication Bypass via PyPIExtensionManager
Summary
JupyterLab versions >=4.6.0,<=4.6.1 and <=4.5.9 contain an allowlist/blocklist enforcement gap in PyPIExtensionManager.install(). A missing 'await' caused the is_install_allowed coroutine to never execute, so the extension allowlist/blocklist check was not enforced for direct callers of install(). The stock JupyterLab HTTP API and Extension Manager UI are not affected, as they perform a separate, correctly awaited check. The issue affects only deployments where a custom extension or downstream integration imports PyPIExtensionManager and calls install() directly with a package name influenced by untrusted input, an allowlist/blocklist is configured, the PyPI Extension Manager is enabled, and kernels and terminals are disabled or delegated to remote hosts. Fixed in JupyterLab 4.6.2 and 4.5.10.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 12:57 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/jupyterlab-b… | third-party-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
4.6.0 , < 4.6.1
(semver)
Unaffected: 4.6.1 (semver) |
|
| jupyterlab | jupyterlab |
Affected:
0 , < 4.5.10
(semver)
Unaffected: 4.5.10 (semver) |
Date Public
2026-07-21 00:00
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CVE-2026-73415 (GCVE-0-2026-73415)
Vulnerability from nvd – Published: 2026-08-12 19:54 – Updated: 2026-08-12 20:54
VLAI
EPSS
VEX
Title
jupyterlab: Image viewer in JupyterLab allows XSS when opening malicious image in new browser tab
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.10 and 4.6.2, in packages/imageviewer/src/widget.ts, JupyterLab's ImageViewer uses URL.createObjectURL for a specially crafted SVG image and revokes the blob URL too early, allowing the image to retain an executable same-origin context when it is opened through the image viewer and then opened in a new browser tab. The resulting cross-site scripting can be used to execute arbitrary code on the JupyterLab server. This issue is fixed in versions 4.5.10 and 4.6.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 20:35 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/pull/19184 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19185 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19186 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/9… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/b… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/f… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
< 4.5.10
Affected: >= 4.6.0, < 4.6.2 |
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CVE-2026-67338 (GCVE-0-2026-67338)
Vulnerability from nvd – Published: 2026-08-01 12:22 – Updated: 2026-08-03 19:36
VLAI
EPSS
VEX
Title
JupyterLab before 4.5.9 Stored XSS via Extension Manager
Summary
JupyterLab before 4.5.9 contains a stored cross-site scripting vulnerability in the Extension Manager that fails to validate URI protocols in package metadata URLs. Attackers can publish malicious PyPI packages with javascript: URLs in project metadata that execute arbitrary JavaScript in the JupyterLab origin when users click the extension name.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 19:36 UTC
CWE
- CWE-84 - Improper Neutralization of Encoded URI Schemes in a Web Page
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | vendor-advisory |
| https://github.com/jupyterlab/jupyterlab/commit/4… | patch |
| https://github.com/jupyterlab/jupyterlab/commit/d… | patch |
| https://www.vulncheck.com/advisories/jupyterlab-b… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
0 , < 4.5.9
(semver)
Unaffected: 4.5.9 (semver) cpe:2.3:a:jupyter:jupyterlab:*:*:*:*:*:*:*:* |
Date Public
2026-06-18 00:00
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CVE-2026-42557 (GCVE-0-2026-42557)
Vulnerability from nvd – Published: 2026-05-13 15:06 – Updated: 2026-07-22 12:08
VLAI
EPSS
VEX
Title
jupyterlab: Command linker attributes in HTML enable one-click command execution from untrusted content
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.7, JupyterLab's HTML sanitizer allowlists data-commandlinker-command and data-commandlinker-args on button elements, while CommandLinker listens for all click events on document.body and executes the named command without checking whether the element came from trusted JupyterLab UI. A notebook with a pre-saved HTML cell output containing a deceptive button can trigger arbitrary JupyterLab commands - including arbitrary code execution - on a single user click, without any code being submitted for execution by the user. This vulnerability is fixed in 4.5.7.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-14 17:57 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://access.redhat.com/security/cve/CVE-2026-42557 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2477086 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:43038 | vendor-advisoryx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
< 4.5.7
|
|
| jupyter | notebook |
Affected:
>= 7.0.0, < 7.5.6
|
|
| Red Hat | Red Hat Migration Toolkit for Applications 8.2 |
Unaffected:
1784109883 , < *
(rpm)
cpe:/a:redhat:migration_toolkit_applications:8.2::el9 |
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
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CVE-2026-42266 (GCVE-0-2026-42266)
Vulnerability from nvd – Published: 2026-05-13 15:08 – Updated: 2026-07-22 12:08
VLAI
EPSS
VEX
Title
JupyterLab has an Extension Manager API/GUI Policy Discrepancy allowing 3rd party (malicious) extensions install via POST request.
Summary
JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.0.0 to 4.5.6, the allow-list of extensions that can be installed from PyPI Extension Manager (allowed_extensions_uris) is not correctly enforced by JupyterLab. The PyPI Extension Manager was not contained to packages listed on the default PyPI index. This vulnerability is fixed in 4.5.7.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 00:00 UTC
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://jupyterhub.readthedocs.io/en/5.2.1/explan… | x_refsource_MISC |
| https://jupyterlab.readthedocs.io/en/latest/user/… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-42266 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2477072 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:43038 | vendor-advisoryx_refsource_REDHAT |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>= 4.0.0, < 4.5.7
|
|
| Red Hat | Red Hat Migration Toolkit for Applications 8.2 |
Unaffected:
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cpe:/a:redhat:migration_toolkit_applications:8.2::el9 |
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
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CVE-2026-40171 (GCVE-0-2026-40171)
Vulnerability from nvd – Published: 2026-05-06 19:36 – Updated: 2026-05-08 03:55
VLAI
EPSS
VEX
Title
Jupyter Notebook and JupyterLab token theft via stored XSS in help command linker
Summary
In Jupyter Notebook versions 7.0.0 through 7.5.5, JupyterLab versions 4.5.6 and earlier, and the corresponding @jupyter-notebook/help-extension and @jupyterlab/help-extension packages before 7.5.6 and 4.5.7, a stored cross-site scripting issue in the help command linker can be chained with attacker-controlled notebook content to steal authentication tokens with a single click.
An attacker can craft a malicious notebook file containing elements that appear indistinguishable from legitimate controls and trigger execution when a user interacts with them. Successful exploitation allows theft of the user's authentication token and complete takeover of the Jupyter session through the REST API, including reading files, creating or modifying files, accessing kernels to execute arbitrary code, and creating terminals for shell access. This issue has been fixed in Notebook 7.5.6, JupyterLab 4.5.7, @jupyter-notebook/help-extension 7.5.6, and @jupyterlab/help-extension 4.5.7. As a workaround, disable the affected help extensions or set allowCommandLinker to false in the sanitizer configuration.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-07 00:00 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/jupyter/notebook/security/advi… | x_refsource_CONFIRM |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyter | notebook |
Affected:
>=7.0.0, <= 7.5.5
|
|
| jupyterlab | help-extension |
Affected:
<=4.5.6
|
|
| jupyterlab | jupyterlab |
Affected:
<= 4.5.6
|
|
| jupyter-notebook | help-extension |
Affected:
>=7.0.0,<= 7.5.5
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CVE-2025-59842 (GCVE-0-2025-59842)
Vulnerability from nvd – Published: 2025-09-26 15:53 – Updated: 2025-09-26 17:52
VLAI
EPSS
VEX
Title
JupyterLab LaTeX typesetter links did not enforce `noopener` attribute
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to version 4.4.8, links generated with LaTeX typesetters in Markdown files and Markdown cells in JupyterLab and Jupyter Notebook did not include the noopener attribute. This is deemed to have no impact on the default installations. Theoretically users of third-party LaTeX-rendering extensions could find themselves vulnerable to reverse tabnabbing attacks if links generated by those extensions included target=_blank (no such extensions are known at time of writing) and they were to click on a link generated in LaTeX (typically visibly different from other links). This issue has been patched in version 4.4.8.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-26 17:36 UTC
CWE
- CWE-1022 - Use of Web Link to Untrusted Target with window.opener Access
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/commit/8… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
< 4.4.8
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CVE-2024-43805 (GCVE-0-2024-43805)
Vulnerability from nvd – Published: 2024-08-28 19:43 – Updated: 2024-08-28 19:58
VLAI
EPSS
VEX
Title
HTML injection in Jupyter Notebook and JupyterLab leading to DOM Clobbering
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. This vulnerability depends on user interaction by opening a malicious notebook with Markdown cells, or Markdown file using JupyterLab preview feature. A malicious user can access any data that the attacked user has access to as well as perform arbitrary requests acting as the attacked user. JupyterLab v3.6.8, v4.2.5 and Jupyter Notebook v7.2.2 have been patched to resolve this issue. Users are advised to upgrade. There is no workaround for the underlying DOM Clobbering susceptibility. However, select plugins can be disabled on deployments which cannot update in a timely fashion to minimise the risk. These are: 1. `@jupyterlab/mathjax-extension:plugin` - users will loose ability to preview mathematical equations. 2. `@jupyterlab/markdownviewer-extension:plugin` - users will loose ability to open Markdown previews. 3. `@jupyterlab/mathjax2-extension:plugin` (if installed with optional `jupyterlab-mathjax2` package) - an older version of the mathjax plugin for JupyterLab 4.x. To disable these extensions run: ```jupyter labextension disable @jupyterlab/markdownviewer-extension:plugin && jupyter labextension disable @jupyterlab/mathjax-extension:plugin && jupyter labextension disable @jupyterlab/mathjax2-extension:plugin ``` in bash.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-28 19:58 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
notebook: >= 7.0.0, <= 7.2.2
Affected: jupyterlab: >= 4.0.0, < 4.2.5 Affected: jupyterlab: < 3.6.8 |
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CVE-2024-22421 (GCVE-0-2024-22421)
Vulnerability from nvd – Published: 2024-01-19 20:45 – Updated: 2025-06-17 21:19
VLAI
EPSS
VEX
Title
Potential authentication and CSRF tokens leak in JupyterLab
Summary
JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook and Architecture. Users of JupyterLab who click on a malicious link may get their `Authorization` and `XSRFToken` tokens exposed to a third party when running an older `jupyter-server` version. JupyterLab versions 4.1.0b2, 4.0.11, and 3.6.7 are patched. No workaround has been identified, however users should ensure to upgrade `jupyter-server` to version 2.7.2 or newer which includes a redirect vulnerability fix.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-20 22:36 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/commit/1… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
< 3.6.7
Affected: >=4.0.0,< 4.0.11 |
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CVE-2024-22420 (GCVE-0-2024-22420)
Vulnerability from nvd – Published: 2024-01-19 20:49 – Updated: 2025-05-30 14:25
VLAI
EPSS
VEX
Title
Stored cross site scripting in Markdown Preview in JupyterLab
Summary
JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook and Architecture. This vulnerability depends on user interaction by opening a malicious Markdown file using JupyterLab preview feature. A malicious user can access any data that the attacked user has access to as well as perform arbitrary requests acting as the attacked user. JupyterLab version 4.0.11 has been patched. Users are advised to upgrade. Users unable to upgrade should disable the table of contents extension.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-08 15:53 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/commit/e… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>=4.0.0, < 4.0.11
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CVE-2021-32797 (GCVE-0-2021-32797)
Vulnerability from nvd – Published: 2021-08-09 20:45 – Updated: 2024-08-03 23:33
VLAI
EPSS
VEX
Title
JupyterLab: XSS due to lack of sanitization of the action attribute of an html <form>
Summary
JupyterLab is a user interface for Project Jupyter which will eventually replace the classic Jupyter Notebook. In affected versions untrusted notebook can execute code on load. In particular JupyterLab doesn’t sanitize the action attribute of html `<form>`. Using this it is possible to trigger the form validation outside of the form itself. This is a remote code execution, but requires user action to open a notebook.
Severity
7.4 (High)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/commit/5… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>= 3.1.0, < 3.1.4
Affected: >= 3.0.0, < 3.0.17 Affected: >= 2.3.0, < 2.3.2 Affected: >= 2.0.0, < 2.2.10 Affected: < 1.2.1 |
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CVE-2026-73417 (GCVE-0-2026-73417)
Vulnerability from cvelistv5 – Published: 2026-08-13 22:04 – Updated: 2026-08-14 16:06
VLAI
EPSS
VEX
Title
JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings Editor. In packages/notebook-extension/schema/tracker.json and packages/notebook-extension/src/index.ts, the sideBySideLeftMarginOverride and sideBySideRightMarginOverride settings are not properly validated before being inserted into style content, allowing a crafted settings file to contain instructions that execute as code instead of only changing display preferences. A user can import the malicious file, or an attacker with access to a shared settings location can plant an overrides.json that is applied automatically. The embedded code runs with the affected user's access and can read or modify notebooks and files and run code through the notebook server, including on a connected kernel. This issue is fixed in versions 4.5.10 and 4.6.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 16:06 UTC
CWE
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/pull/19184 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19185 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19186 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/9… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/b… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/f… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>= 3.3.0, < 4.5.10
Affected: >= 4.6.0, < 4.6.2 |
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CVE-2026-73416 (GCVE-0-2026-73416)
Vulnerability from cvelistv5 – Published: 2026-08-13 22:04 – Updated: 2026-08-13 22:04
VLAI
EPSS
VEX
Title
jupyterlab: PyPI extension blocklist package-name canonicalization bypass
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.0 until 4.5.10 and 4.6.2, in jupyterlab/extensions/manager.py and jupyterlab/extensions/pypi.py, JupyterLab's PyPI extension manager enforces blocked_extensions_uris by comparing requested install names to blocklist entries with custom normalization that is weaker than PyPI package-name canonicalization. An authenticated user can request a PyPI-equivalent spelling such as JupyterLab.Git for a blocklisted package such as jupyterlab-git, and JupyterLab accepts the install request even though pip resolves the variant to the same package. Security impact requires an allowlist or blocklist intended to restrict package installation, the PyPI Extension Manager, and kernels and terminals that are disabled or delegated to remote hosts. The bypass lets an authenticated user install a prohibited extension, defeat integrity restrictions, and affect availability without gaining new read access. This issue is fixed in versions 4.5.10 and 4.6.2.
Severity
CWE
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/pull/19184 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19185 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19186 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/9… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/b… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/f… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>= 4.5.0, < 4.5.10
Affected: >= 4.6.0, < 4.6.2 |
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CVE-2026-73627 (GCVE-0-2026-73627)
Vulnerability from cvelistv5 – Published: 2026-08-13 11:28 – Updated: 2026-08-15 03:13
VLAI
EPSS
VEX
Title
JupyterLab 4.6.0 Plugin Manager Lock-Rule Enforcement Bypass
Summary
JupyterLab (pip package 'jupyterlab') versions >=4.1.0,<=4.5.9 and >=4.6.0,<=4.6.1 contain a plugin manager lock-rule enforcement bypass. Two server-side enforcement gaps allow an authenticated user to circumvent administrator lock rules by making direct requests to the /lab/api/plugins endpoint, enabling or disabling plugins that were locked — including child plugins of multi-plugin extensions and plugins locked via the 'lock all' mechanism. This can impact data integrity and bypass hardening or restrictions (e.g., download/upload limits) implemented through locked plugins. Fixed in versions 4.6.2 and 4.5.10.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-15 03:13 UTC
CWE
- CWE-602 - Client-Side Enforcement of Server-Side Security
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/jupyterlab-p… | third-party-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Unaffected:
0 , < 4.6.0
(semver)
|
|
| jupyterlab | jupyterlab |
Unaffected:
0 , < 4.1.0
(semver)
|
Date Public
2026-07-21 00:00
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CVE-2026-73626 (GCVE-0-2026-73626)
Vulnerability from cvelistv5 – Published: 2026-08-13 11:28 – Updated: 2026-08-13 12:57
VLAI
EPSS
VEX
Title
JupyterLab before 4.6.2 Authentication Bypass via PyPIExtensionManager
Summary
JupyterLab versions >=4.6.0,<=4.6.1 and <=4.5.9 contain an allowlist/blocklist enforcement gap in PyPIExtensionManager.install(). A missing 'await' caused the is_install_allowed coroutine to never execute, so the extension allowlist/blocklist check was not enforced for direct callers of install(). The stock JupyterLab HTTP API and Extension Manager UI are not affected, as they perform a separate, correctly awaited check. The issue affects only deployments where a custom extension or downstream integration imports PyPIExtensionManager and calls install() directly with a package name influenced by untrusted input, an allowlist/blocklist is configured, the PyPI Extension Manager is enabled, and kernels and terminals are disabled or delegated to remote hosts. Fixed in JupyterLab 4.6.2 and 4.5.10.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 12:57 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/jupyterlab-b… | third-party-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
4.6.0 , < 4.6.1
(semver)
Unaffected: 4.6.1 (semver) |
|
| jupyterlab | jupyterlab |
Affected:
0 , < 4.5.10
(semver)
Unaffected: 4.5.10 (semver) |
Date Public
2026-07-21 00:00
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CVE-2026-73415 (GCVE-0-2026-73415)
Vulnerability from cvelistv5 – Published: 2026-08-12 19:54 – Updated: 2026-08-12 20:54
VLAI
EPSS
VEX
Title
jupyterlab: Image viewer in JupyterLab allows XSS when opening malicious image in new browser tab
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.10 and 4.6.2, in packages/imageviewer/src/widget.ts, JupyterLab's ImageViewer uses URL.createObjectURL for a specially crafted SVG image and revokes the blob URL too early, allowing the image to retain an executable same-origin context when it is opened through the image viewer and then opened in a new browser tab. The resulting cross-site scripting can be used to execute arbitrary code on the JupyterLab server. This issue is fixed in versions 4.5.10 and 4.6.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 20:35 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/pull/19184 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19185 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/pull/19186 | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/9… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/b… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/commit/f… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
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Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
< 4.5.10
Affected: >= 4.6.0, < 4.6.2 |
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CVE-2026-67338 (GCVE-0-2026-67338)
Vulnerability from cvelistv5 – Published: 2026-08-01 12:22 – Updated: 2026-08-03 19:36
VLAI
EPSS
VEX
Title
JupyterLab before 4.5.9 Stored XSS via Extension Manager
Summary
JupyterLab before 4.5.9 contains a stored cross-site scripting vulnerability in the Extension Manager that fails to validate URI protocols in package metadata URLs. Attackers can publish malicious PyPI packages with javascript: URLs in project metadata that execute arbitrary JavaScript in the JupyterLab origin when users click the extension name.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 19:36 UTC
CWE
- CWE-84 - Improper Neutralization of Encoded URI Schemes in a Web Page
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | vendor-advisory |
| https://github.com/jupyterlab/jupyterlab/commit/4… | patch |
| https://github.com/jupyterlab/jupyterlab/commit/d… | patch |
| https://www.vulncheck.com/advisories/jupyterlab-b… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
0 , < 4.5.9
(semver)
Unaffected: 4.5.9 (semver) cpe:2.3:a:jupyter:jupyterlab:*:*:*:*:*:*:*:* |
Date Public
2026-06-18 00:00
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CVE-2026-42266 (GCVE-0-2026-42266)
Vulnerability from cvelistv5 – Published: 2026-05-13 15:08 – Updated: 2026-07-22 12:08
VLAI
EPSS
VEX
Title
JupyterLab has an Extension Manager API/GUI Policy Discrepancy allowing 3rd party (malicious) extensions install via POST request.
Summary
JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.0.0 to 4.5.6, the allow-list of extensions that can be installed from PyPI Extension Manager (allowed_extensions_uris) is not correctly enforced by JupyterLab. The PyPI Extension Manager was not contained to packages listed on the default PyPI index. This vulnerability is fixed in 4.5.7.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 00:00 UTC
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/releases… | x_refsource_MISC |
| https://jupyterhub.readthedocs.io/en/5.2.1/explan… | x_refsource_MISC |
| https://jupyterlab.readthedocs.io/en/latest/user/… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-42266 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2477072 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:43038 | vendor-advisoryx_refsource_REDHAT |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>= 4.0.0, < 4.5.7
|
|
| Red Hat | Red Hat Migration Toolkit for Applications 8.2 |
Unaffected:
1784109883 , < *
(rpm)
cpe:/a:redhat:migration_toolkit_applications:8.2::el9 |
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
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CVE-2026-42557 (GCVE-0-2026-42557)
Vulnerability from cvelistv5 – Published: 2026-05-13 15:06 – Updated: 2026-07-22 12:08
VLAI
EPSS
VEX
Title
jupyterlab: Command linker attributes in HTML enable one-click command execution from untrusted content
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.7, JupyterLab's HTML sanitizer allowlists data-commandlinker-command and data-commandlinker-args on button elements, while CommandLinker listens for all click events on document.body and executes the named command without checking whether the element came from trusted JupyterLab UI. A notebook with a pre-saved HTML cell output containing a deceptive button can trigger arbitrary JupyterLab commands - including arbitrary code execution - on a single user click, without any code being submitted for execution by the user. This vulnerability is fixed in 4.5.7.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-14 17:57 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://access.redhat.com/security/cve/CVE-2026-42557 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2477086 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:43038 | vendor-advisoryx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
< 4.5.7
|
|
| jupyter | notebook |
Affected:
>= 7.0.0, < 7.5.6
|
|
| Red Hat | Red Hat Migration Toolkit for Applications 8.2 |
Unaffected:
1784109883 , < *
(rpm)
cpe:/a:redhat:migration_toolkit_applications:8.2::el9 |
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
|
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CVE-2026-40171 (GCVE-0-2026-40171)
Vulnerability from cvelistv5 – Published: 2026-05-06 19:36 – Updated: 2026-05-08 03:55
VLAI
EPSS
VEX
Title
Jupyter Notebook and JupyterLab token theft via stored XSS in help command linker
Summary
In Jupyter Notebook versions 7.0.0 through 7.5.5, JupyterLab versions 4.5.6 and earlier, and the corresponding @jupyter-notebook/help-extension and @jupyterlab/help-extension packages before 7.5.6 and 4.5.7, a stored cross-site scripting issue in the help command linker can be chained with attacker-controlled notebook content to steal authentication tokens with a single click.
An attacker can craft a malicious notebook file containing elements that appear indistinguishable from legitimate controls and trigger execution when a user interacts with them. Successful exploitation allows theft of the user's authentication token and complete takeover of the Jupyter session through the REST API, including reading files, creating or modifying files, accessing kernels to execute arbitrary code, and creating terminals for shell access. This issue has been fixed in Notebook 7.5.6, JupyterLab 4.5.7, @jupyter-notebook/help-extension 7.5.6, and @jupyterlab/help-extension 4.5.7. As a workaround, disable the affected help extensions or set allowCommandLinker to false in the sanitizer configuration.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-07 00:00 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/jupyter/notebook/security/advi… | x_refsource_CONFIRM |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyter | notebook |
Affected:
>=7.0.0, <= 7.5.5
|
|
| jupyterlab | help-extension |
Affected:
<=4.5.6
|
|
| jupyterlab | jupyterlab |
Affected:
<= 4.5.6
|
|
| jupyter-notebook | help-extension |
Affected:
>=7.0.0,<= 7.5.5
|
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CVE-2025-59842 (GCVE-0-2025-59842)
Vulnerability from cvelistv5 – Published: 2025-09-26 15:53 – Updated: 2025-09-26 17:52
VLAI
EPSS
VEX
Title
JupyterLab LaTeX typesetter links did not enforce `noopener` attribute
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to version 4.4.8, links generated with LaTeX typesetters in Markdown files and Markdown cells in JupyterLab and Jupyter Notebook did not include the noopener attribute. This is deemed to have no impact on the default installations. Theoretically users of third-party LaTeX-rendering extensions could find themselves vulnerable to reverse tabnabbing attacks if links generated by those extensions included target=_blank (no such extensions are known at time of writing) and they were to click on a link generated in LaTeX (typically visibly different from other links). This issue has been patched in version 4.4.8.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-26 17:36 UTC
CWE
- CWE-1022 - Use of Web Link to Untrusted Target with window.opener Access
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/commit/8… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
< 4.4.8
|
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CVE-2024-43805 (GCVE-0-2024-43805)
Vulnerability from cvelistv5 – Published: 2024-08-28 19:43 – Updated: 2024-08-28 19:58
VLAI
EPSS
VEX
Title
HTML injection in Jupyter Notebook and JupyterLab leading to DOM Clobbering
Summary
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. This vulnerability depends on user interaction by opening a malicious notebook with Markdown cells, or Markdown file using JupyterLab preview feature. A malicious user can access any data that the attacked user has access to as well as perform arbitrary requests acting as the attacked user. JupyterLab v3.6.8, v4.2.5 and Jupyter Notebook v7.2.2 have been patched to resolve this issue. Users are advised to upgrade. There is no workaround for the underlying DOM Clobbering susceptibility. However, select plugins can be disabled on deployments which cannot update in a timely fashion to minimise the risk. These are: 1. `@jupyterlab/mathjax-extension:plugin` - users will loose ability to preview mathematical equations. 2. `@jupyterlab/markdownviewer-extension:plugin` - users will loose ability to open Markdown previews. 3. `@jupyterlab/mathjax2-extension:plugin` (if installed with optional `jupyterlab-mathjax2` package) - an older version of the mathjax plugin for JupyterLab 4.x. To disable these extensions run: ```jupyter labextension disable @jupyterlab/markdownviewer-extension:plugin && jupyter labextension disable @jupyterlab/mathjax-extension:plugin && jupyter labextension disable @jupyterlab/mathjax2-extension:plugin ``` in bash.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-28 19:58 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
notebook: >= 7.0.0, <= 7.2.2
Affected: jupyterlab: >= 4.0.0, < 4.2.5 Affected: jupyterlab: < 3.6.8 |
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CVE-2024-22420 (GCVE-0-2024-22420)
Vulnerability from cvelistv5 – Published: 2024-01-19 20:49 – Updated: 2025-05-30 14:25
VLAI
EPSS
VEX
Title
Stored cross site scripting in Markdown Preview in JupyterLab
Summary
JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook and Architecture. This vulnerability depends on user interaction by opening a malicious Markdown file using JupyterLab preview feature. A malicious user can access any data that the attacked user has access to as well as perform arbitrary requests acting as the attacked user. JupyterLab version 4.0.11 has been patched. Users are advised to upgrade. Users unable to upgrade should disable the table of contents extension.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-08 15:53 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/commit/e… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>=4.0.0, < 4.0.11
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CVE-2024-22421 (GCVE-0-2024-22421)
Vulnerability from cvelistv5 – Published: 2024-01-19 20:45 – Updated: 2025-06-17 21:19
VLAI
EPSS
VEX
Title
Potential authentication and CSRF tokens leak in JupyterLab
Summary
JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook and Architecture. Users of JupyterLab who click on a malicious link may get their `Authorization` and `XSRFToken` tokens exposed to a third party when running an older `jupyter-server` version. JupyterLab versions 4.1.0b2, 4.0.11, and 3.6.7 are patched. No workaround has been identified, however users should ensure to upgrade `jupyter-server` to version 2.7.2 or newer which includes a redirect vulnerability fix.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-20 22:36 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/commit/1… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
< 3.6.7
Affected: >=4.0.0,< 4.0.11 |
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CVE-2021-32797 (GCVE-0-2021-32797)
Vulnerability from cvelistv5 – Published: 2021-08-09 20:45 – Updated: 2024-08-03 23:33
VLAI
EPSS
VEX
Title
JupyterLab: XSS due to lack of sanitization of the action attribute of an html <form>
Summary
JupyterLab is a user interface for Project Jupyter which will eventually replace the classic Jupyter Notebook. In affected versions untrusted notebook can execute code on load. In particular JupyterLab doesn’t sanitize the action attribute of html `<form>`. Using this it is possible to trigger the form validation outside of the form itself. This is a remote code execution, but requires user action to open a notebook.
Severity
7.4 (High)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jupyterlab/jupyterlab/security… | x_refsource_CONFIRM |
| https://github.com/jupyterlab/jupyterlab/commit/5… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jupyterlab | jupyterlab |
Affected:
>= 3.1.0, < 3.1.4
Affected: >= 3.0.0, < 3.0.17 Affected: >= 2.3.0, < 2.3.2 Affected: >= 2.0.0, < 2.2.10 Affected: < 1.2.1 |
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